In Pascals Principle,Why is the A1 smaller than A2,and how does the small force(effort) lift a car? #confused?
The small force does NOT lift the car. The LARGE force lifts the car. A small force acting over a small area produces PRESSURE. ( a moderate pressure ) This moderate pressure acting over a large area produces a large force. At the same time energy is involved if the car actually moves. Energy cannot be created so that we must do a lot more moving of the small pump to give enough energy to the fluid to make the larger piston move a small distance.
The force is equally distributed. In that case the car is lifted a little. This can be repeated again and again. Please note that the work done is mgh. m is the mass of the car. h is the height lifted. You need to send this much energy. Pascal principle helps to distribute force uniformly.
